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US 10,370,493 B2Granted
Polyglycerol alkoxylate esters and preparation and use thereof
AssigneeEvonik Degussa GmbH
InventorsKathrin Daniela Brandt, Matthias Lobert, Dominik Schuch, Joachim Venzmer, Peter Schwab, Beata Bednorz, Anja Brösgen, Svenja Blaschek
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Abstract
The invention provides polyglycerol alkoxylate esters and for the preparation and use thereof.
Claims20
A polyglycerol alkoxylate ester of the general formula (I)
- wherein
- Ra, Rb, Rc=identical or different and independently selected from H and acyl radical of fatty acid with from 16 to 22 carbon atoms, wherein an average of 3 to 6 of the Ra, Rb, Rc radicals per molecule are not H,
- Rd=H,
- n=1.5 to 16,
- x, y, z=identical or different and independently 30 to 200,
- wherein the sum total of x+n·y+z averages 251 to 750.
3 more elements
A process for preparing polyglycerol alkoxylate ester, comprising the process steps of
- A) providing a polyglycerol having a polymerization level n of 1.5 to 16,
- B) alkoxylating the polyglycerol with 251 to 750 mol of alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, and dodecene oxide per mole of polyglycerol used in the overall process is used in process step B), and
- C) esterifying with 3 to 6 mol of at least one selected from organic acids per mole of polyglycerol used in the overall process.
Dependencies are inferred from the claim text.